MESON Chess Problem Database
Problem Display
PID: 47492 (5N2/2pQP2p/2PP1ppP/1P1kqbR1/1PN5/1P1P1K2/5B2/4R2B w - - 0 1)
Moore, Robert Clyde
The Problemist, 2003
#2
16 + 7
SOLUTION
- SOUND
- Sets
- 1...Qa1
- 2.Ke2#
- 2.Ke3#
- 2.Kg3#
- 2.Kf4#
- 2.Qe6#
- 2.dxc7#
- 1...Qb2
- 2.Ke3#
- 2.Kg3#
- 2.Kf4#
- 2.Qe6#
- 2.dxc7#
- 1...Qh2
- 2.Qe6#
- 1...Qc3
- 2.Ke2#
- 2.Ke3#
- 2.Kg3#
- 2.Kf4#
- 2.Qe6#
- 2.dxc7#
- 1...Qg3+
- 2.Kxg3#
- 1...Qd4
- 2.Qe6#
- 2.dxc7#
- 1...Qf4+
- 2.Kxf4#
- 1...Qxd6
- 2.Ke2#
- 2.Ke3#
- 1...Qxe1
- 2.dxc7#
- 1...Qe2+
- 2.Kxe2#
- 1...Qe3+
- 2.Kxe3#
- 1...Qe4+
- 2.dxe4#
- 1...Qe6
- 2.Qxe6#
- 1...Qxe7
- 2.dxe7#
- 1...Bxd3
- 2.Qe6#
- 2.dxc7#
- 1...Be4+
- 2.dxe4#
- 1...Bg4+
- 2.Kxg4#
- 1...Be6
- 2.Qxe6#
- 1...fxg5
- 2.Rxe5#
- 1...cxd6
- 2.Sb6#
- 1...Qa1
- Tries
- 1.Kg2?
- 1...Qh2+
- 2.Kxh2#
- 1...Qg3+
- 2.Kxg3#
- 1...Qe4+
- 2.dxe4#
- 1...Bh3+
- 2.Kxh3#
- 1...Be4+
- 2.dxe4#
- 1...Qxd6
- 2.Kf1#
- 2.Kg1#
- 1...Qxe1
- 2.dxc7#
- 1...Qxe7
- 2.dxe7#
- 1...Bxd3
- 2.Qe6#
- 2.dxc7#
- 1...Bxd7
- 2.Kf1#
- 2.Kg1#
- 1...fxg5
- 2.Rxe5#
- 1...cxd6
- 2.Sb6#
- 1...Qe3
- 2.dxc7#
- 1...Qa1
- 2.Kf1#
- 2.Kg1#
- 2.Kh2#
- 2.Kg3#
- 2.Qe6#
- 2.dxc7#
- 1...Qb2
- 2.Kf1#
- 2.Kg1#
- 2.Kh2#
- 2.Kg3#
- 2.Qe6#
- 2.dxc7#
- 1...Qc3
- 2.Kf1#
- 2.Kg1#
- 2.Kh2#
- 2.Kg3#
- 2.Qe6#
- 2.dxc7#
- 1...Qd4
- 2.Qe6#
- 2.dxc7#
- 1...Qf4
- 2.Qe6#
- 1...Qe2
- 2.dxc7#
- 1...Qe6
- 2.Qxe6#
- 1...Be6
- 2.Kf1#
- 2.Kg1#
- 2.Qxe6#
- 1...Bg4!
- 1...Qh2+
- 1.Se6?
- threat
- 2.Sxc7#
- 1...Qg3+
- 2.Kxg3#
- 1...Qf4+
- 2.Kxf4#
- 2.Sxf4#
- 1...Qe2+
- 2.Kxe2#
- 1...Qe3+
- 2.Kxe3#
- 1...Qe4+
- 2.dxe4#
- 1...Be4+
- 2.dxe4#
- 1...Bg4+
- 2.Kxg4#
- 1...Qxe6
- 2.Qxe6#
- 1...cxd6
- 2.Sb6#
- 2.Sc7#
- 1...Bxe6!
- threat
- 1.Sxg6?
- 1...Qg3+
- 2.Kxg3#
- 1...Qf4+
- 2.Kxf4#
- 2.Sxf4#
- 1...Qe2+
- 2.Kxe2#
- 1...Qe3+
- 2.Kxe3#
- 1...Qe4+
- 2.dxe4#
- 1...Be4+
- 2.dxe4#
- 1...Bg4+
- 2.Kxg4#
- 1...Qxd6
- 2.Ke2#
- 2.Ke3#
- 2.Sf4#
- 2.Rxf5#
- 1...Qxe1
- 2.Sf4#
- 2.dxc7#
- 1...Qxe7
- 2.Sf4#
- 2.Sxe7#
- 2.dxe7#
- 1...Bxd3
- 2.Sf4#
- 2.dxc7#
- 1...Bxg6
- 2.dxc7#
- 1...Bxd7
- 2.Sf4#
- 1...fxg5
- 2.Rxe5#
- 1...cxd6
- 2.Sb6#
- 1...Qa1
- 2.Ke2#
- 2.Ke3#
- 2.Kg3#
- 2.Kf4#
- 2.Sf4#
- 2.Qe6#
- 2.dxc7#
- 1...Qb2
- 2.Ke3#
- 2.Kg3#
- 2.Kf4#
- 2.Sf4#
- 2.Qe6#
- 2.dxc7#
- 1...Qh2
- 2.Qe6#
- 1...Qc3
- 2.Ke2#
- 2.Ke3#
- 2.Kg3#
- 2.Kf4#
- 2.Sf4#
- 2.Qe6#
- 2.dxc7#
- 1...Qd4
- 2.Qe6#
- 2.dxc7#
- 1...Qe6
- 2.Sf4#
- 2.Qxe6#
- 1...Bh3
- 2.Sf4#
- 1...Be6
- 2.Sf4#
- 1...hxg6!
- 1...Qg3+
- 1.Sxh7?
- 1...Qg3+
- 2.Kxg3#
- 1...Qf4+
- 2.Kxf4#
- 1...Qe2+
- 2.Kxe2#
- 1...Qe3+
- 2.Kxe3#
- 1...Qe4+
- 2.dxe4#
- 1...Be4+
- 2.dxe4#
- 1...Bg4+
- 2.Kxg4#
- 1...Qxd6
- 2.Ke2#
- 2.Ke3#
- 2.Sxf6#
- 1...Qxe1
- 2.Sxf6#
- 2.dxc7#
- 1...Qxe7
- 2.dxe7#
- 1...Bxd3
- 2.Sxf6#
- 2.dxc7#
- 1...fxg5
- 2.Rxe5#
- 1...cxd6
- 2.Sb6#
- 1...Qa1
- 2.Ke2#
- 2.Ke3#
- 2.Kg3#
- 2.Kf4#
- 2.Qe6#
- 2.dxc7#
- 1...Qb2
- 2.Ke3#
- 2.Kg3#
- 2.Kf4#
- 2.Qe6#
- 2.dxc7#
- 1...Qh2
- 2.Sxf6#
- 2.Qe6#
- 1...Qc3
- 2.Ke2#
- 2.Ke3#
- 2.Kg3#
- 2.Kf4#
- 2.Qe6#
- 2.dxc7#
- 1...Qd4
- 2.Qe6#
- 2.dxc7#
- 1...Qe6
- 2.Qxe6#
- 1...Bh3
- 2.Sxf6#
- 1...Be6
- 2.Sxf6#
- 1...Bxd7!
- 1...Qg3+
- 1.Ba7?
- 1...Qg3+
- 2.Kxg3#
- 1...Qf4+
- 2.Kxf4#
- 1...Qe2+
- 2.Kxe2#
- 1...Qe3+
- 2.Kxe3#
- 1...Qe4+
- 2.dxe4#
- 1...Be4+
- 2.dxe4#
- 1...Bg4+
- 2.Kxg4#
- 1...Qxd6
- 2.Ke2#
- 2.Kf2#
- 2.Ke3#
- 1...Qxe1
- 2.dxc7#
- 1...Qxe7
- 2.dxe7#
- 1...Bxd3
- 2.Se3#
- 2.Qe6#
- 2.dxc7#
- 1...Bxd7
- 2.Kf2#
- 1...fxg5
- 2.Rxe5#
- 1...Bh3
- 2.Se3#
- 1...Qa1
- 2.Ke2#
- 2.Kf2#
- 2.Ke3#
- 2.Kg3#
- 2.Kf4#
- 2.Qe6#
- 2.dxc7#
- 1...Qb2
- 2.Qe6#
- 2.dxc7#
- 1...Qh2
- 2.Qe6#
- 1...Qc3
- 2.Ke2#
- 2.Kf2#
- 2.Ke3#
- 2.Kg3#
- 2.Kf4#
- 2.Qe6#
- 2.dxc7#
- 1...Qd4
- 2.Qe6#
- 2.dxc7#
- 1...Qe6
- 2.Qxe6#
- 1...Be6
- 2.Kf2#
- 2.Se3#
- 2.Qxe6#
- 1...cxd6!
- 1...Qg3+
- 1.Qxf5?
- threat
- 2.Kg4#
- 2.Qe4#
- 2.Qe6#
- 1...Qxf5+
- 2.Ke2#
- 2.Ke3#
- 2.Kg3#
- 1...fxg5
- 2.Kg4#
- 2.Rxe5#
- 2.Qxe5#
- 1...gxf5!
- threat
- 1.dxc7+?
- 1...Qd6
- 2.Ke2#
- 2.Ke3#
- 2.Sb6#
- 2.Qxd6#
- 1...Bxd7!
- 1...Qd6
- 1.e8S?
- threat
- 2.Sxc7#
- 1...Qg3+
- 2.Kxg3#
- 1...Qf4+
- 2.Kxf4#
- 1...Qe2+
- 2.Kxe2#
- 1...Qe3+
- 2.Kxe3#
- 1...Qe4+
- 2.dxe4#
- 1...Be4+
- 2.dxe4#
- 1...Bg4+
- 2.Kxg4#
- 1...cxd6
- 2.Sb6#
- 2.Sc7#
- 1...Qxe8!
- threat
- 1.Kg2?
- Keys
- 1.Bc5!
- 1...Qg3+
- 2.Kxg3#
- 1...Qf4+
- 2.Kxf4#
- 1...Qe2+
- 2.Kxe2#
- 1...Qe3+
- 2.Kxe3#
- 1...Qe4+
- 2.dxe4#
- 1...Be4+
- 2.dxe4#
- 1...Bg4+
- 2.Kxg4#
- 1...Qxd6
- 2.Ke2#
- 2.Kf2#
- 2.Ke3#
- 1...Qxe1
- 2.dxc7#
- 1...Qxe7
- 2.dxe7#
- 1...Bxd3
- 2.Se3#
- 2.Qe6#
- 2.dxc7#
- 1...Bxd7
- 2.Kf2#
- 2.Se3#
- 1...fxg5
- 2.Rxe5#
- 1...cxd6
- 2.Sb6#
- 1...Bh3
- 2.Se3#
- 1...Qa1
- 2.Ke2#
- 2.Kf2#
- 2.Ke3#
- 2.Kg3#
- 2.Kf4#
- 2.Qe6#
- 2.dxc7#
- 1...Qb2
- 2.Qe6#
- 2.dxc7#
- 1...Qh2
- 2.Qe6#
- 1...Qc3
- 2.Ke2#
- 2.Kf2#
- 2.Ke3#
- 2.Kg3#
- 2.Kf4#
- 2.Qe6#
- 2.dxc7#
- 1...Qd4
- 2.Qe6#
- 2.dxc7#
- 1...Qe6
- 2.Qxe6#
- 1...Be6
- 2.Kf2#
- 2.Se3#
- 2.Qxe6#
- 1...Qg3+
- 1.Bc5!
This is after
After H. W. Bettmann.
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- Q(b);N_GUARD,P_SPINB(c)::QAB1(N)
- Q(b);CHECK,P_SPINB(c)::B(B)+K(F),XQ(b)
- Q(b);N_GUARD,P_SPINB(c),XR(A)::QAR(N)+P(L),XP(f)
- Q(b);CHECK,OGATE,P_SPINB(c)::P(E),XQ(b)
- Q(b);N_GUARD,P_SPINB(c)::QAB1(N),XQ(b)
- Q(b);OGATE,P_SPINB(c),XP(O)::QAR(N)+P(L),XQ(b)
- B(c);CHECK,OGATE,P_SPINQ(b)::P(E),XB(c)
- B(c);CHECK,P_SPINQ(b)::B(B)+K(F),XB(c)
- B(c);N_GUARD,P_SPINQ(b)::QAB1(N),XB(c)
- P(d);N_GUARD,XR(J)::R1(A),XQ(b)
- P(f);N_GUARD,P_SPINP(f),XP(L)::S(H)
- Tries
- Try
- K(F);S_FLIGHT
- Vars
- Q(b);CHECK,P_SPINB(c)::B(B)+K(F),XQ(b)
- Q(b);CHECK,OGATE,P_SPINB(c)::P(E),XQ(b)
- B(c);CHECK,P_SPINQ(b)::B(B)+K(F),XB(c)
- B(c);CHECK,OGATE,P_SPINQ(b)::P(E),XB(c)
- Q(b);N_GUARD,P_SPINB(c),XR(A)::QAR(N)+P(L),XP(f)
- Q(b);OGATE,P_SPINB(c),XP(O)::QAR(N)+P(L),XQ(b)
- P(d);N_GUARD,XR(J)::R1(A),XQ(b)
- P(f);N_GUARD,P_SPINP(f),XP(L)::S(H)
- Q(b);N_GUARD,P_SPINB(c)::QAR(N)+P(L),XP(f)
- Q(b);N_GUARD,P_SPINB(c)::QAB1(N)
- Q(b);N_GUARD,P_PINB(C),P_SPINB(c)::QAR(N)+P(L),XP(f)
- Q(b);N_GUARD,P_SPINB(c)::QAB1(N),XQ(b)
- Refutation
- B(c);P_SPINQ(b)
- Try
- S(P);
- Threat
- S(P),XP(f)
- Vars
- Q(b);CHECK,P_SPINB(c)::B(B)+K(F),XQ(b)
- Q(b);CHECK,OGATE,P_SPINB(c)::P(E),XQ(b)
- B(c);CHECK,OGATE,P_SPINQ(b)::P(E),XB(c)
- B(c);CHECK,P_SPINQ(b)::B(B)+K(F),XB(c)
- Q(b);OGATE,P_SPINB(c),XS(P)::QAB1(N),XQ(b)
- Refutation
- B(c);P_SPINQ(b),XS(P)
- Try
- S(P);XP(e)
- Vars
- Q(b);CHECK,P_SPINB(c)::B(B)+K(F),XQ(b)
- Q(b);CHECK,OGATE,P_SPINB(c)::P(E),XQ(b)
- B(c);CHECK,OGATE,P_SPINQ(b)::P(E),XB(c)
- B(c);CHECK,P_SPINQ(b)::B(B)+K(F),XB(c)
- B(c);N_GUARD,P_SPINQ(b),XS(P)::QAR(N)+P(L),XP(f)
- B(c);P_SPINQ(b),XQ(N)::S(P)
- P(d);N_GUARD,XR(J)::R1(A),XQ(b)
- P(f);N_GUARD,P_SPINP(f),XP(L)::S(H)
- Q(b);N_GUARD,P_SPINB(c)::QAB1(N)
- B(c);P_SPINQ(b)::S(P)
- Refutation
- P(g);XS(P)
- Try
- S(P);XP(g)
- Vars
- Q(b);CHECK,P_SPINB(c)::B(B)+K(F),XQ(b)
- Q(b);CHECK,OGATE,P_SPINB(c)::P(E),XQ(b)
- B(c);CHECK,OGATE,P_SPINQ(b)::P(E),XB(c)
- B(c);CHECK,P_SPINQ(b)::B(B)+K(F),XB(c)
- Q(b);OGATE,P_SPINB(c),XP(O)::QAR(N)+P(L),XQ(b)
- P(d);N_GUARD,XR(J)::R1(A),XQ(b)
- P(f);N_GUARD,P_SPINP(f),XP(L)::S(H)
- Q(b);N_GUARD,P_SPINB(c)::QAB1(N),XQ(b)
- B(c);P_SPINQ(b)::S(P),XP(d)
- Refutation
- B(c);P_SPINQ(b),XQ(N)
- Try
- B(C);
- Vars
- Q(b);CHECK,P_SPINB(c)::B(B)+K(F),XQ(b)
- Q(b);CHECK,OGATE,P_SPINB(c)::P(E),XQ(b)
- B(c);CHECK,OGATE,P_SPINQ(b)::P(E),XB(c)
- B(c);CHECK,P_SPINQ(b)::B(B)+K(F),XB(c)
- Q(b);N_GUARD,P_SPINB(c),XR(A)::QAR(N)+P(L),XP(f)
- Q(b);OGATE,P_SPINB(c),XP(O)::QAR(N)+P(L),XQ(b)
- B(c);N_GUARD,P_SPINQ(b),XQ(N)::B(B)+K(F)
- P(d);N_GUARD,XR(J)::R1(A),XQ(b)
- B(c);P_SPINQ(b)::S(H)
- Q(b);N_GUARD,P_SPINB(c)::QAB1(N)
- Q(b);N_GUARD,P_SPINB(c)::QAB1(N),XQ(b)
- Refutation
- P(f);P_SPINP(f),XP(L)
- Try
- Q(N);P_PINQ(b),XB(c)
- Threat
- DUALS(3)
- Refutation
- P(e);N_SPINQ(b),XQ(N)
- Try
- P(L);CHECK,XP(f)
- Refutation
- B(c);P_SPINQ(b),XQ(N)
- Try
- P(O);
- Threat
- S(O),XP(f)
- Vars
- Q(b);CHECK,P_SPINB(c)::B(B)+K(F),XQ(b)
- Q(b);CHECK,OGATE,P_SPINB(c)::P(E),XQ(b)
- B(c);CHECK,OGATE,P_SPINQ(b)::P(E),XB(c)
- B(c);CHECK,P_SPINQ(b)::B(B)+K(F),XB(c)
- Refutation
- Q(b);P_SPINB(c),XS(O)
- Try
- Actual
- B(C);
- Vars
- Q(b);CHECK,P_SPINB(c)::B(B)+K(F),XQ(b)
- Q(b);CHECK,OGATE,P_SPINB(c)::P(E),XQ(b)
- B(c);CHECK,OGATE,P_SPINQ(b)::P(E),XB(c)
- B(c);CHECK,P_SPINQ(b)::B(B)+K(F),XB(c)
- Q(b);N_GUARD,P_SPINB(c),XR(A)::QAR(N)+P(L),XP(f)
- Q(b);OGATE,P_SPINB(c),XP(O)::QAR(N)+P(L),XQ(b)
- P(d);N_GUARD,XR(J)::R1(A),XQ(b)
- P(f);N_GUARD,P_SPINP(f),XP(L)::S(H)
- B(c);P_SPINQ(b)::S(H)
- Q(b);N_GUARD,P_SPINB(c)::QAB1(N)
- Q(b);N_GUARD,P_SPINB(c)::QAB1(N),XQ(b)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).